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AgentShelf SHAKE256 Hex Digest
x402
AgentShelf SHAKE256 Hex Digest is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-01).
Computes a SHAKE256 hash of the provided text and returns the result encoded as a hexadecimal string
Price / call$0.005
Success—
StatusUnknown
How this service works
Call when an agent needs a shake256 digest of text, encoded as hex. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-shake256-hex first.
Output
Returns a hexadecimal-encoded SHAKE256 digest of the submitted text. The output is a deterministic, fixed-length hex string derived purely from the input text using the SHAKE256 extendable-output function (XOF). No network calls or LLM inference are involved in the computation.
Example use cases
Data integrity fingerprinting pipeline
“Hash this JSON payload with SHAKE256 and give me the hex digest so I can store it as a content fingerprint: '{"user":"alice","action":"login","ts":1718000000}'”
Deterministic ID generation from text
“I need a SHAKE256 hex hash of the string 'order-ref-2024-XZ99' to use as a deterministic identifier in my database.”
Verifying document content hasn't changed
“Take this contract text and compute its SHAKE256 hex digest so I can compare it against the hash I saved last week to see if anything changed: 'This agreement is entered into on January 1, 2025 between Party A and Party B...'”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/digest-shake256-hex?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a SHAKE256 digest specifically encoded as hexadecimal (rather than base64 or other encodings), and want a fast, deterministic, no-dependency computation without involving an LLM or external network call. Prefer the free sandbox equivalent (/v1/sandbox/digest-shake256-hex) for testing. Use this paid version for production workflows requiring reliable uptime and guaranteed response.
Side effects
- Empty or missing 'text' field returns a validation error
- Text exceeding 100,000 characters is rejected
- Missing or empty 'key' field returns a validation error
- Key exceeding 512 characters is rejected
- Insufficient USDC balance results in payment failure (x402)
- Malformed JSON request body returns a 400 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| key | string | HMAC secret. Required on HMAC SKUs. Omit it for plain digests and checksums. The key is not stored. |
| text | string | Message to digest. For raw-hex SKUs this is hex bytes; for utf16 or latin1 SKUs it is decoded with that encoding. Otherwise it is UTF-8 text. |
Tags
x402
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